improve pthread_exit synchronization with functions targeting tid
[musl] / src / thread / pthread_kill.c
1 #include "pthread_impl.h"
2
3 int pthread_kill(pthread_t t, int sig)
4 {
5         int r;
6         LOCK(t->killlock);
7         r = t->tid ? -__syscall(SYS_tkill, t->tid, sig)
8                 : (sig+0U >= _NSIG ? EINVAL : 0);
9         UNLOCK(t->killlock);
10         return r;
11 }